Bearers.



E. W. COOPER.

BEARERS.

APPLICATION FILED AUG.26, 1913.

Patented May 18, 1915.

2 SHEETSSHEET I.

ENVENT'QR.

warren earns PATENT OFFTC.

ELLIS W. COOPER OF BLOOMFIELD, NEW JERSEY, ASSIGNOR T0 HOE AND (30., OF

NEW YORK, N. Y., A

CORPORATION OF NEW YORK.

BEABERS.

ll idO,25d.

Specification of Letters Patent.

Patented May 18, 11915.

To all whom it may concern Be it known that I, ELLIs W. COOPER, a citizen of the United States, residing at Bloomfield, county of Essex, and State of New Jersey, have invented certain new and useful Improvements in Bearers, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

This invention relates to bearers or bearin bands for use with printing machines.

in many classes of printing machines that are employed for producing fine work, it is desirable that the cylinders, turning rolls, pipe rolls, etc. over which the printed surface of the sheet or web runs should be provided with portions where the margin of such sheet or web can be raised above the remaining portion of the cylinder or roll, so that the printed portion of the sheet or web is kept out of contact with the roll, and blurring thereby prevented while the sheet after receiving its impression is being conducted to other mechanisms, such as slitters, etc. As the width of the sheet or web varies, however, from time to time, it is necessary that such raised portions be of such character as to be adjustable to difierent positions along the cylinder. Various devices for efiecting this have been suggested. That generally heretofore used has been to provide thin bands of copper or steel held by spring pressure, these bands encircling the cylinder at suitable points on its periphery and adjustable along the surface of the cylinder. Due to the fact that these bands have to be very thin to prevent breaking of the web, difiiculty has been experienced in their use due to the fact that they become distorted and do not maintain their shape after they have been thus adjusted a few times.

It is the especial object of the present invention to provide an improvedbearer which preferably is in the form of an endless band or belt of flexible material, as webbing or soft metal, and so supported that it may be tightened to bring it in correct position with relation to the periphery of the cylinder, and at the same time readily loosened so as to be moved along the cylinder without warping or otherwise altering its shape, so that it will efliciently effectuate the functions for which it is intended.

For a full understanding of the invention,

a description will now be given of certain constructions embodying the same, taken in connection with the accompanying drawings, in which Figure 1 is a diagrammatic side elevation of part of a printing machine showing a bending or turning roll and a pair of slit t ng rolls operating on a web; Fig. 2 is a side View of a hollow roll partly broken away showing certain of the improved bearers in position; Fig. 3 is a longitudinal section on an enlarged scale showing a bearer and the preferred method of supporting the same; Fig. l is a cross section taken on line 44 of Fig. 3; Fig. 5 is a cross sectional view taken on line 5--5 of Fig. 6 showing a modification which may be employed when used with cylinders or rolls provided with interior shafts, and Fig. 6 is a side view partly broken away and partly in section of the modified construction illustrated in Fig. 5.

Referring now to the drawings, it will be understood that the improved bearer is intended for use with those rolls and cylinders over which the printed sheet passes after receiving its impression. Such rollers may be cylinders, bending or turning rolls, pipe rollers, guide rollers, etc., and the invention has been illustrated in one of its forms as shown in connection with a bending or turning roll for turning or directing a web to slitting mechanism. As shown in the drawings, slitting rolls 2, 3 to which the web W is guided by the roll are shown in conjunction therewith.

Bearers constructed in accordance with the invention comprise strips or belts of flexible material, webbing being preferred, and in the preferred form, these strips or belts are endless, the ends being suitably secured together as by sewing. If desired, however, endless strips of soft metal may be employed. The bearers 4 are mounted so that they may be brought into close relation with the outer periphery of the cylinder with which they are employed, and at the same time so that they can be loosened and moved along the periphery of the cylinder Without deforming them or altering their shape. The means for mounting the bearers to effect this may be widely varied. In the particular construction illustrated the bearer is supported and held from within the cylinder or roll, which is provided at this roll is marked 1, and the suitable points on its peri hay with elongated slots 5 through w ich the bearer passes, these slots being of a length suificlent to permit the bearer to be moved along the periphery of'the cylinder the distance desired for the varying sized sheet or web; which is being produced.

Positioned within the cyllnder iaa. support. This support may be varied in construction. Where the cylinder or rollflls a hollow one, this support may be in the form of a bar 7- which is dimensioned to be passed through the slots 5 before referred to when assembling the parts. This bar 7 is provided at each end with threaded bosses 8 into which take set screws 9. These set screws are preferably, in the best constructions, provided with springs 10 which take between the bosses 8 and the inside wallof the cylinder orroll. The bearer, which in the particular construction illustrated, is an endless belt of webbing, is looped under this bar, as shown in Fig. 4, passing through the slot 5 around the outer periphery of the cylinder. It is apparent that by screwing up on the set screws 9 the bar will be drawn inwardly and the webbing tightened on the outer periphery of the cylinder. When it is desired to shift the bearer, itis simply necessary to loosen the set screws 9, w en thesupporting bar, by the action of the spring 10, will loosen the webbing sufliciently to lpermit it to be slidito the desired point on t e periphery of the cylinder. By this construction, the bearers may be easily adjusted without in any way becoming deformed or losing their sha e, and thereby becoming ineffective for to purpose for which they are employed.

In many instances, it is desirable, in printing press constructions, that the cylinders, rolls, etc., should be mounted' to rotate on a shaft passing therethrough. In Figs. 5 and 6 is. illustrated a construction of simple design, whereby the improved bearers may be used with cylinders and rolls so mounted, and in which are illustrated two bearers carried by one supporting device, the bearers 4, which are or may be endless bands of webbing, being looped about a supportin rod or bar 12. This supporting her is held by means of suitable set screws 13 in r' gs 14 which encircle the cylinder shaft 15 and clear the shaft by a space suflicient to give the necessary loosening and ti htenin movement to the bar or rod 12. 'ese rings 14 are provided with bosses 16 into which take set screws 17, springs 18 being provided between the bosses and the inner periphery or inner wall of the cylinder. By taking up or loosening the set screws 17 the rings, and with them the bar, ma be adjusted sufficiently to tighten the belt to bring it in close contact with the outer periphery of the cylinder or'may be loosened sufliciently to same without departing 5., In combination with printing machine, carers spaced from each other the width of printing machine,

derstood-that the invention is not to be restricted' to such means, but that certain changes and variations may be made in the from the invention. at is claimed is: 1. The combination a plurality of supporting bars located within the roll, a plurality of endless flexible bands, one for each support, looped under the support and passing around the periphery of the roll at different points and means whereby the SHPPOI'U may be ad justed for tightening or loosening the bands so that the bands may be moved to varying positions along the roll.

2. The combination with vided' with a peripheral slot, of a supporting bar located within the roll, an endless band of webbing looped under the bar and passing through the slot around the outer periphery of the roll, set the supporting bars may be adjusted to tighten or loosen the band of webbin so that it may be moved to varying positions along the roll, and springs between the supportin bar and the inner wall of the roll. 3: The combination with the cylinder of a printing machine, of a plurality of bands of flexible material substantially encircling the periphery of the cylinder and spaced from each other the width of the printed 1 05 matter on a sheet, and sup orting devices located within the cylinder or tightening and loosening the bands about the cylinder.

'1. The combination with the cylinder of a printing machine, flexible material substantially encircling the periphery of the cylinder spaced from each other the width of the printed matter on a sheet and adjustable to varying positions along the cylinder surface, and devices located within the cylinder or tightening and loosening the bands about the cylinder.

the cylinder of a a plurality the printed matter on a sheet, said bearers each including a band of flexible material substantially encircling the periphery of the cylinder and coiiperating with support located within the cylinder, the said suppprt being movable to tighten or loosen the and about the cylinder. 6. In combination with the cylinder'of a bearers may be 70 with a hollow roll, of so thereon, $5

a hollow roll proscrews by which of a plurality of bands of sufpporting of margin a suitable a plurality of margin 1 memes bearers spaced from each other the Width of In testimony whereof, I. have hereunto set the printed matter on a sheet, each bearer my hand, in the presence of two subscribing including a band of flexible material subwitnesses.

stantially encircling the periphery of the ELLIS W. COOPER. 5 cylinder and passed under a suitable support itnesses:

located Within the cylinder and movable to RICHARD KELLY,

varying positions along the cylinder surface. HAROLD M. TILLINGHAs'r. 

